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Finding the Fourth Proportional to 14,614.35, 20,167.95 and 7,900.11

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Solution

The fourth proportional to 14,614.35, 20,167.95 and 7,900.11 is: 10,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.35 : 20,167.95 = 7,900.11 : x
  2. Step 2: Convert to fraction form
    14,614.35/20,167.95 = 7,900.11/x
  3. Step 3: Cross multiply
    14,614.35x = 20,167.95 × 7,900.11
  4. Step 4: Simplify right side
    14,614.35x = 159,329,023.47
  5. Step 5: Solve for x
    x = 159,329,023.47/14,614.35
  6. Step 6: Final answer
    x = 10,902.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.